Fountain pen



Aug. 9, 1 938. B. H. DlcKs l FOUNTAIN PEN Filed Deo. 29, 1957 ATTORNEYSPatented Aug. 9, 1938 UNITEDl STATES PATENT oFFlcE FOUNTAIN PEN vBeauford Harold Dicks, Athelstane, Wis. Application December 29, 1937,Serial No. 182,347

3 Claims.

This invention relates to fountain pens and has for an object to providea fountain pen having a replaceable ink tube and valve. therefor topromote an easier and cleaner refilling of a fountain `parts of thefountain pen while other parts of the fountain pen, namely, the cap onthe end of the barrel, may be rotated to turn .the tube axially in thevalve and selectively open and close the valve to control the ink supplyto the pen point.

A further object is to provide a fountain pen so constructed as tointerchangeably receive fillers or ink tubes containing ink ofrespectively distinctive colors.

A further object is to provide a fountain pen of" the type describedwhich will be formed of a few strong simple and durable parts, whichwill be inexpensive to manufacture and which will not easily get out oforder.

With the above and other objects in view the invention consists ofcertain novel details of construction and combinations of partshereinafter fully described and claimed, it being understood thatVarious modifications may be resorted to within the scope of theappended claims without departing from the spirit or sacricing any ofthe advantages of the invention.

In the accompanying drawing forming part of this specification,

Figure 1 is a side elevation of a fountain pen constructed in accordancewith the invention and showing the rotatable cap on the barrel togetherwith legends for indicating the position of the valve.

Figure 2 is an enlarged longitudinal sectional view of the fountain pen,showing the valve open.

Figure 3 is a detail cross sectional view taken on the line 3 3 ofFigure 2 showing the `clip and the sleeve in top plan.

Figure 4 is a detail cross sectional view taken on the line 4 4 ofFigure 2 showing the guide pin carried by the valve and ink tubeassembly.

Figure 5 is a detail cross sectional View taken on the line 5 5 ofFigure 2 showing the squared wrench head on the ink tube received in thesocket in the cap and showing the guide pin carried by the cap engagedin a bayonet slot in the barrel.

(Cl. 1Z0-48) Figure 6 is an enlarged detail plan view of the ink tubeand valve assembly.

Figure 7 is a longitudinal sectional view of the ink tube and valveassembly taken on the line T 'I of Figure 6 and showing the valveclosed.

Figure is a cross sectional view taken on the line 8 8 of Figure '7looking in the direction of the arrowheads.

Figure 9 is a detail side elevation of the end of the barrel with thecap for turning the ink tube removed.

Referring now to the drawing in which like characters of referencedesignate similar parts in the various views, I0 designates the fountainpen barrel, II the sleeve, I2 the clip, and I3 the sleeve clamp buttonfor securing the clip inplace. `The bore of the barrel is substantiallycylindrical and is adapted to receive a similarly shaped filler or inktube III which may be formed of any desired material. One end of thetube is I provided with a squared wrench head I5 whichV is receivable ina socket I6 formed in a cap I1 that is slidably and rotatably mounted ona r-educed collar I8 formed on the end of the barrel.

The collar is provided with a bayonet slot I9, best shown in Figure 9,to receive a guide pin 20 carried by the cap. Manual rotation of the capturns the ink tube Ill on its axis.

As best shown in Figure '7 the end wall 2l of the ink tube, opposite thewrench head I5 is provided with a port 22. The cylindrical wall of thetube near the port is provided with a circumferential groove 23. Asubstantially cylindrical valve 24 is assembled as a unit with thegrooved end of the ink tube and for this purpose a rib 25 is spun orotherwise formed in the valve to rotatably nest in the groove 23. Thevalve is provided with a diaphragm 26 having a port 21, best shown inFigure 8, adapted to be brought into registration with the port 22 inthe end wall of the ink tube to permit the contents of the ink tube toescape. Beyond the diaphragm the valve is provided with a squared wrenchhead 28, best shown in Figure 6.

The wrench head 28 is for the purpose of holding the valve stationarywhile the ink tube is turned on its axis to dispose the ports 22 Iand 21selectively in registration or out of registration. The part of the penwhich holds the valve stationary is the nib 29, the same having asquared socket 3D, best shown in Figure 4, to receive the wrench head 28of the valve. A washer 3| is interposed between the end of the wrenchhead 28 and the end wall of the squared socket. as best shown in Figure2.

The nib 2s is provided with a guide pin 32 which is engaged in alongitudinal slot 33 formed in the bore of the barrel l0. The pinprevents rotation of the nib and permits application and removal of thenib from the barrel by straight line movement.

A ferrule 34 is threadedly engaged with a reduced neck on the barrel asshown at 35. The ferrule is provided with a shoulder 36 which is adaptedto clamp the collar 3T on the nib 29, against the end of the threadedneck of the barrel and hold the nib firmly in position.

By referring to Figures 1 and 9 it will be seen that legends are formedon the barrel to denote On and Off positions of the valve, these legendsbeing provided with suitable indicating arrowheads which coact with asingle arrowhead on the cap ll in indicating said positions. To replacean empty ink tube and valve assembly when the tube has been used up, thecap I1 is turned until the indicating arrow thereon arrives at thelegend Remove, At such point the pin 20 is in registration with thelongitudinal leg 38 of the bayonet slot so that the cap may be removed.Thereupon, the projecting end of the ink tube may be clasped in thelingers and the tube and valve assembly withdrawn endwise from thebarrel. The empty ink tube may be discarded and a full ink tube andvalve assembly thereupon inserted endwise in the barrel until the wrenchhead 28 of the valve engages in the squared socket 30 in the nib 29. Thecap l1 will now be slipped on to the collar I8 and given a suilicientturn to bring the indicating arrow of the cap at the legend marking Off.VTo permit the ink to escape from the tube to the ink feeder 39 and penpoint 40 the cap need only be rotated until the pin arrives at the endof the bayonet slot in which position the arrowhead of the cap will bein registration with the legend On and the valve Will be open.

From the above description it is thought that the construction andoperation of the invention will be fully understood without furtherexplanation.

What is claimed is:

l. A fountain pen comprising a barrel, a tube lled with ink removablydisposed in the barrel, a valve on one end of the tube, a wrench head onthe opposite end of the tube, means connected with the barrel anddisposing the valve in a predetermined relationship with respect to thewrench head, and a cap removably and rotatably disposed on the barreland having a socket receiv- Y ing said wrench head for rotating the tubewith respect to the valve to open and close the valve.

2. A fountain pen comprising a barrel, a tube containing an ink supplyremovably disposed in the barrel, a valve on one end of the tube, awrench head on the opposite end of the tube, a wrench head on saidvalve, means connected to the barrel and engaging the valve wrench headfor holding the valve stationary, and a cap removably and rotatablydisposed on the barrel and having a socket receiving the wrench head ofthe tube for rotating the tube axially with respect to the valve to openand close the valve.

3. A fountain pen comprising a barrel, a cap on one end of the barrel, abayonet joint connection between the cap and the barrel whereby the capmay be rotated on the barrel, a tube containing a supply of ink housedin the barrel, a wrench head on the tube detachably engaged with saidcap whereby turning of the cap turns the tube axially, a nib on theother end of the tube, a pin and slot connection between the nib andbarrel permitting of the nib being assembled by endwise movement withthe barrel, a valve carried as an integral assembly with the tube, awrench head on the barrel, and a socket on the nib removably engagingthe valve wrench head for holding the valve stationary to permit controlof the valve by rotation axially of the ink tube.

BEAUFORD HAROLD DICKS.

